Question

Pressure range for low pressure die casting is ___________

(a) 0.3-1.5 bars

(b) 0.5-2 bars

(c) 2-6 bars

(d) up to 8 bars

The question was asked during an online interview.

My question is taken from Special Casting Techniques in portion Special Casting Techniques of Casting-Forming-Welding I

Answer 1

Right choice is (a) 0.3-1.5 bars

For explanation: Usually the gauge is set to a range of 0.3-1.5 bars while providing pressure to the molten metal to raise it in the riser.